Experts and former officials warn that additional public borrowing will not successfully “trick” bond markets, with several commentators arguing investors will adjust pricing to reflect higher debt. The warning is attributed to a broader view among market participants that UK government borrowing costs are driven by expectations for fiscal sustainability rather than short-term messaging. In commentary reported by The Independent, former Conservative chancellor Philip Hammond says bond markets “will see straight through this ruse and price UK debt up accordingly.” The pieces frame the issue as a test of credibility: if borrowing increases without clear, credible plans for how debt will be managed over time, markets may demand higher returns from UK issuers. Overall, the sources present the same core message—that attempts to change market perceptions primarily through more borrowing are likely to backfire through higher yields and debt-servicing costs. No specific policy details or figures are provided in the excerpts, but the focus is on the likely market response and the importance of maintaining fiscal confidence.